" In many ways, expensive advertising and brands arise as a solution to a problem identified by George Akerlof in his 1970 paper ‘The Market for Lemons’ in the Quarterly Journal of Economics. The problem is known as ‘information asymmetry’, whereby the seller knows more about what he is selling than the buyer knows about what he is buying. This lesson was learned the hard way in Eastern Bloc countries under communism; brands were considered un-Marxist, so bread was simply labelled ‘bread’. Customers had no idea who had made it or whom to blame if it arrived full of maggots, and couldn’t avoid that make in future if it did, because all bread packaging looked the same. Unhappy customers had no threat of sanction; happy customers had no prospect of rewarding producers through repeat custom. And so the bread was rubbish. "

― Rory Sutherland , Alchemy: The Surprising Power of Ideas That Don't Make Sense